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Finding the Fourth Proportional to 86,366.38, 129,549.57 and 33,738.96

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Solution

The fourth proportional to 86,366.38, 129,549.57 and 33,738.96 is: 50,608.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,366.38 : 129,549.57 = 33,738.96 : x
  2. Step 2: Convert to fraction form
    86,366.38/129,549.57 = 33,738.96/x
  3. Step 3: Cross multiply
    86,366.38x = 129,549.57 × 33,738.96
  4. Step 4: Simplify right side
    86,366.38x = 4,370,867,760.25
  5. Step 5: Solve for x
    x = 4,370,867,760.25/86,366.38
  6. Step 6: Final answer
    x = 50,608.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.